By the Irish American Jazz Age novelist and short story writer regarded as one of the greatest American writers of the twentieth century. He was the self-styled spokesman of the "Lost Generation" and author of The Great Gatsby (1925). His debut novel, This Side of Paradise (1920) examines the lives and morality of post-World War I youth. Flappers and Philosophers (1920) was his first collection of short stories. His second novel, The Beautiful and Damned (1922), demonstrates an evolution and maturity in his writing, and provides an excellent portrait of America during the Jazz Age, as does Tales of the Jazz Age (1922).